Pronunciation: bish-ehk-tee-pel-tuh Meaning: Bissekty Formation Shield Author/s: Parish and Barrett (2002) Synonyms: None known First Discovery: Dzharakuduk, Uzbekistan Chart Position: 415
Bissektipelta is based on a braincase and skull roof from the Kyzyl kum Desert that Averianov assigned to Amtosaurus as a second species—Amtosaurus archibaldi— in 2002. A mere two years later Jolyon Parish and Paul Barrett declared that Amtosaurus was dubious, meaning the remains of Amtosaurus archibaldi were up for grabs, so they nabbed them to anchor Bissektipelta in 2004, whilst retaining the original epithet. To date, Bissektipelta is the only confirmed ankylosaurid from Uzbekistan and one of the few from anywhere with three separate braincase exit points for the hypoglossal nerve which drives tongue movement, but these facts do not make it unique. What does, however, are a trio of caputegulum (skull tiles) on its skull roof that are larger than those found on the few other ankylosaurs that have them, and are separated by grooves that form a distinctive Y-shape.
(Archibald's Bissekty Lizard)EtymologyBissektipelta is derived from "Bissekty" (see discovery) and the Greek "pelte" (shield), so named for the armour which ankylosaurids are renowned for.
The species epithet, archibaldi, is named for professor David Archibald, in recognition of his work on Late Cretaceous vertebrates from Central Asia.
DiscoveryThe remains of Bissektipelta were discovered at Dzharakuduk in the Bissekty Formation, Navoi Viloyat (Navoi Province), Uzbekistan, by the joint Usbek-Russian-British-American-Canadian (Urbac) Project in September 1998. The holotype (ZIN PH 1/6) is a braincase and incomplete skull roof, along with isolated teeth and osteoderms.